What happened in the first questions doesn't influence the final question, so the probability is simply 1/5 = 0.2
9cm cuz if u divide 18 And 2 u will fe y 9
The answer is C I solved it with my teacher
Answer:
see explanation
Step-by-step explanation:
Using the identity
tan x = 
Consider the left side

=
( multiply numerator and denominator by cos²x to clear fractions
=
← ( cos²x + sin²x = 1 ]
= cos²x - sin²x
= right side , thus proven